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Finding the Fourth Proportional to 624,471.80, 936,707.70 and 225,125.60

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Solution

The fourth proportional to 624,471.80, 936,707.70 and 225,125.60 is: 337,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,471.80 : 936,707.70 = 225,125.60 : x
  2. Step 2: Convert to fraction form
    624,471.80/936,707.70 = 225,125.60/x
  3. Step 3: Cross multiply
    624,471.80x = 936,707.70 × 225,125.60
  4. Step 4: Simplify right side
    624,471.80x = 210,876,882,987.12
  5. Step 5: Solve for x
    x = 210,876,882,987.12/624,471.80
  6. Step 6: Final answer
    x = 337,688.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.